How to add loading indicator to AutoCompleteTextView

Question

I would like to show loading indicator in AutoCompleteTextView while loading data from web-service. Preferably it should be shown on right side of autocomplete (f.i. animation like in progress control - spinning wheel). How this can be done?

Answer 1

I would like to show loading indicator in AutoCompleteTextView while loading data from web-service.

Put a ProgressBar with an indeterminate look on the right of the widget and extend the AutoCompleTextView class like this:

public class AutoCompleteLoadding extends AutoCompleteTextView {

    private ProgressBar mLoadingIndicator;

    public void setLoadingIndicator(ProgressBar view) {
        mLoadingIndicator = view;
    }

    @Override
    protected void performFiltering(CharSequence text, int keyCode) {
        // the AutoCompleteTextview is about to start the filtering so show
        // the ProgressPager
        mLoadingIndicator.setVisibility(View.VISIBLE);
        super.performFiltering(text, keyCode);
    }

    @Override
    public void onFilterComplete(int count) {
        // the AutoCompleteTextView has done its job and it's about to show
        // the drop down so close/hide the ProgreeBar
        mLoadingIndicator.setVisibility(View.INVISIBLE);
        super.onFilterComplete(count);
    }

}

Pass the reference to the ProgressBar with the setLoadingIndicator() method. This assumes that you're making the web service requests in the adapter(of the AutoCompleteTextView)/the adapter's filter.